//------------------------------------------------------------------------------ 
//  <copyright file="RGBCameraEnumerator.h" company="Microsoft Corporation">
// The MIT License (MIT)
// 
// Copyright (c) 2014, Microsoft Corporation
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//  THE SOFTWARE.
//  </copyright>
//------------------------------------------------------------------------------
#pragma once

#include "Managed.h"

#include "MediaFoundationUtility.h"

#include "RGBCamera.h"

namespace Microsoft {
    namespace Robotics {
        namespace Vision {
            namespace Cameras {
				namespace Webcam {

    /// <summary>
    /// RGB Camera Enumerator which enumerates through all the camera devices.
    /// </summary>
    ref class RGBCameraEnumerator : IEnumerator<RGBCamera^>
    {
    private:

        /// <summary>
        /// The list of camera devices.
        /// </summary>
        IMFActivate **_ppDevices;

        /// <summary>
        /// Count of camera devices.
        /// </summary>
        int m_nCount;

        /// <summary>
        /// Index of the current camera device.
        /// </summary>
        int m_nIndex;

    public:

        /// <summary>
        /// Initializes a new instance of the RGBCameraEnumerator class.
        /// </summary>
        RGBCameraEnumerator();

        /// <summary>
        /// dtor
        /// </summary>
        ~RGBCameraEnumerator();

        /// <summary>
        /// Advances the enumerator to the next element of the collection.
        /// </summary>
        virtual bool MoveNext();

        /// <summary>
        /// Sets the enumerator to its initial position, which is before the first element in the collection.
        /// </summary>
        virtual void Reset();

        /// <summary>
        /// Current camera for the old IEnumerator before generics.
        /// </summary>
        virtual property Object^ OldCurrent
        {
            Object^ get() = System::Collections::IEnumerator::Current::get
            {
                return Current::get();
            }
        }

        /// <summary>
        /// Current camera for IEnumerator<T>.
        /// </summary>
        virtual property RGBCamera^ Current
        {
            RGBCamera^ get();
        }
    };
}}}}}
